Hi,
Can anyone please let me know the meaning of this line,i am not able to understand the egrep part(egrep '^[0-9]{1,2}).This will search for this combination in beginning but what does the values in {}signifies here.
A regular expression may be followed by one of several repetition
operators:
? The preceding item is optional and matched at most once.
* The preceding item will be matched zero or more times.
+ The preceding item will be matched one or more times.
{n} The preceding item is matched exactly n times.
{n,} The preceding item is matched n or more times.
{n,m} The preceding item is matched at least n times, but not more
than m times.